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Kernel: Make self-contained locking smart pointers their own classes

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Until now, our kernel has reimplemented a number of AK classes to
provide automatic internal locking:

- RefPtr
- NonnullRefPtr
- WeakPtr
- Weakable

This patch renames the Kernel classes so that they can coexist with
the original AK classes:

- RefPtr => LockRefPtr
- NonnullRefPtr => NonnullLockRefPtr
- WeakPtr => LockWeakPtr
- Weakable => LockWeakable

The goal here is to eventually get rid of the Lock* classes in favor of
using external locking.
This commit is contained in:
Andreas Kling 2022-08-19 20:53:40 +02:00
parent e475263113
commit 11eee67b85
360 changed files with 1703 additions and 1672 deletions
Download patch file Download diff file Expand all files Collapse all files

30
Kernel/Memory/AnonymousVMObject.h
View file

@ -18,14 +18,14 @@ class AnonymousVMObject final : public VMObject {
public:
virtual ~AnonymousVMObject() override;
static ErrorOr<NonnullRefPtr<AnonymousVMObject>> try_create_with_size(size_t, AllocationStrategy);
static ErrorOr<NonnullRefPtr<AnonymousVMObject>> try_create_for_physical_range(PhysicalAddress paddr, size_t size);
static ErrorOr<NonnullRefPtr<AnonymousVMObject>> try_create_with_physical_pages(Span<NonnullRefPtr<PhysicalPage>>);
static ErrorOr<NonnullRefPtr<AnonymousVMObject>> try_create_purgeable_with_size(size_t, AllocationStrategy);
static ErrorOr<NonnullRefPtr<AnonymousVMObject>> try_create_physically_contiguous_with_size(size_t);
virtual ErrorOr<NonnullRefPtr<VMObject>> try_clone() override;
static ErrorOr<NonnullLockRefPtr<AnonymousVMObject>> try_create_with_size(size_t, AllocationStrategy);
static ErrorOr<NonnullLockRefPtr<AnonymousVMObject>> try_create_for_physical_range(PhysicalAddress paddr, size_t size);
static ErrorOr<NonnullLockRefPtr<AnonymousVMObject>> try_create_with_physical_pages(Span<NonnullLockRefPtr<PhysicalPage>>);
static ErrorOr<NonnullLockRefPtr<AnonymousVMObject>> try_create_purgeable_with_size(size_t, AllocationStrategy);
static ErrorOr<NonnullLockRefPtr<AnonymousVMObject>> try_create_physically_contiguous_with_size(size_t);
virtual ErrorOr<NonnullLockRefPtr<VMObject>> try_clone() override;
[[nodiscard]] NonnullRefPtr<PhysicalPage> allocate_committed_page(Badge<Region>);
[[nodiscard]] NonnullLockRefPtr<PhysicalPage> allocate_committed_page(Badge<Region>);
PageFaultResponse handle_cow_fault(size_t, VirtualAddress);
size_t cow_pages() const;
bool should_cow(size_t page_index, bool) const;
@ -41,12 +41,12 @@ public:
private:
class SharedCommittedCowPages;
static ErrorOr<NonnullRefPtr<AnonymousVMObject>> try_create_with_shared_cow(AnonymousVMObject const&, NonnullRefPtr<SharedCommittedCowPages>, FixedArray<RefPtr<PhysicalPage>>&&);
static ErrorOr<NonnullLockRefPtr<AnonymousVMObject>> try_create_with_shared_cow(AnonymousVMObject const&, NonnullLockRefPtr<SharedCommittedCowPages>, FixedArray<LockRefPtr<PhysicalPage>>&&);
explicit AnonymousVMObject(FixedArray<RefPtr<PhysicalPage>>&&, AllocationStrategy, Optional<CommittedPhysicalPageSet>);
explicit AnonymousVMObject(PhysicalAddress, FixedArray<RefPtr<PhysicalPage>>&&);
explicit AnonymousVMObject(FixedArray<RefPtr<PhysicalPage>>&&);
explicit AnonymousVMObject(WeakPtr<AnonymousVMObject>, NonnullRefPtr<SharedCommittedCowPages>, FixedArray<RefPtr<PhysicalPage>>&&);
explicit AnonymousVMObject(FixedArray<LockRefPtr<PhysicalPage>>&&, AllocationStrategy, Optional<CommittedPhysicalPageSet>);
explicit AnonymousVMObject(PhysicalAddress, FixedArray<LockRefPtr<PhysicalPage>>&&);
explicit AnonymousVMObject(FixedArray<LockRefPtr<PhysicalPage>>&&);
explicit AnonymousVMObject(LockWeakPtr<AnonymousVMObject>, NonnullLockRefPtr<SharedCommittedCowPages>, FixedArray<LockRefPtr<PhysicalPage>>&&);
virtual StringView class_name() const override { return "AnonymousVMObject"sv; }
@ -74,7 +74,7 @@ private:
[[nodiscard]] bool is_empty() const { return m_committed_pages.is_empty(); }
[[nodiscard]] NonnullRefPtr<PhysicalPage> take_one();
[[nodiscard]] NonnullLockRefPtr<PhysicalPage> take_one();
void uncommit_one();
private:
@ -82,8 +82,8 @@ private:
CommittedPhysicalPageSet m_committed_pages;
};
WeakPtr<AnonymousVMObject> m_cow_parent;
RefPtr<SharedCommittedCowPages> m_shared_committed_cow_pages;
LockWeakPtr<AnonymousVMObject> m_cow_parent;
LockRefPtr<SharedCommittedCowPages> m_shared_committed_cow_pages;
bool m_purgeable { false };
bool m_volatile { false };